1326601 has 4 divisors (see below), whose sum is σ = 1331604. Its totient is φ = 1321600.

The previous prime is 1326587. The next prime is 1326607. The reversal of 1326601 is 1066231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 808201 + 518400 = 899^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1326601 - 2⁹ = 1326089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1326607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2080 + ... + 2641.

It is an arithmetic number, because the mean of its divisors is an integer number (332901).

2^1326601 is an apocalyptic number.

It is an amenable number.

1326601 is a deficient number, since it is larger than the sum of its proper divisors (5003).

1326601 is an equidigital number, since it uses as much as digits as its factorization.

1326601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1326601 is about 1151.7816633373. The cubic root of 1326601 is about 109.8786816750.

The spelling of 1326601 in words is "one million, three hundred twenty-six thousand, six hundred one".